Game recap: Colts rally from 23 points down but lose to Rams in overtime

The Indianapolis Colts host the Los Angeles Rams in NFL Week 4 action, and we have score updates and video highlights.

The Colts (2-1) have won the past two games, including an overtime victory over the Baltimore Ravens behind five Matt Gay field goals, four of them from 50+ yards. Rookie quarterback Anthony Richardson is scheduled to return from a concussion today, but the Colts' offensive line has been hit with injuries.

The Rams (1-2) have lost two in a row, most recently to the Cincinnati Bengals on Monday night. Matthew Stafford was under siege in the second half of that game with two injured offensive linemen, and left tackle Alaric Jackson is out.

Nate Atkins, Joel A. Erickson and Gregg Doyel are your best Colts follows all season.

Meet the writers: Join IndyStar Colts Insiders Oct. 11

Will he return?: Colts reportedly plan to open Taylor's practice window

Final: Rams 29, Colts 23, OT

The Colts rally from a 23-point deficit to force overtime before falling to 2-2.

Matthew Stafford hits Puka Nacua on a 22-pass in the middle on the first drive of overtime.

Anthony Richardson goes 11-of-25 passing for 200 yards and touchdowns to Mo Alie-Cox and Drew Ogletree. Richardson also rushes for 56 yards and a 1-yard score. Zack Moss carries 18 times for 70 yards.

Matthew Stafford goes 27-of-40 for 319 yards, and Kenny Moore II intercepts him. Kyren Williams carries 25 times for 103 yards, while Luka Pacau has 9 catches for 163 yards, including the winning touchdown.

The Rams led 23-0 after Brett Maher's 51-yard field goal midway through the third quarter before the Colts' rally to tie it with 1:56 to go in regulation.

Dallis Flowers leaves the game in overtime after suffering a non-contact leg injury.

Insider: Richardson leads Colts back but they fall short

10 thoughts: Expect a lot of these wild swings all season

End of regulation: Colts 23, Rams 23

The Colts rush nobody on 3rd-and-1, and Matthew Stafford throws incomplete. The Rams punt.

1:09 left 4Q: Rams have another chance

The Colts go 3-and-out, all on passes. The Rams are at their 28 after a punt.

1:32 left 4Q: Colts have a chance to win

The Colts force a punt and take over at their 35. Two plays ruled as completions on the field are reversed on review.

1:56 left 4Q: Colts tie Rams in closing minutes

Anthony Richardson hits Drew Ogletree 3 times on that drive for 48 yards, the last one for a 5-yard touchdown. AR hits Michael Pittman Jr. on the 2-point conversion. Richardson is 4-of-5 for 65 yards on the drive. Colts 23, Rams 23

11:45 left 4Q: Colts are back within one score

Anthony Richardson runs it in from 1 yard. He is the first NFL rookie QB with 4 rushing TDs in his first 3 games. Richardson hits Alec Pierce for 38 yards and Michael Pittman Jr. for 15 on the drive. Rams 23, Colts 15

14:16 left 4Q: Colts get the ball back

Brett Maher is 3-of-5 today after missing wide left from 48 yards.

End 3Q: Zaire Franklin is questionable

The NFL's leading tackler leaves the game with a back injury. The Rams face 3rd-and-10 at the Indy 35.

3:36 left 3Q: Colts fail on downs

Anthony Richardson goes 0-of-4 on the drive, and he's under heavy pressure from Aaron Donald and Co.

5:17 left 3Q: Kenny Moore II intercepts Matthew Stafford

The Colts have it at the Rams 42. Matthew Stafford is limping, too.

5:26 left 3Q: Anthony Richardson throws touchdown, hobbles afterward

Richardson escapes the pocket and hits Mo Alie-Cox, who takes it the rest of the way for a 35-yard touchdown. Right tackle Braden Smith steps on Richardson's foot on the play, and the QB hobbles. Richardson hits Zack Moss for the 3-point conversion. Rams 23, Colts 8

7:17 left 3Q: Brett Maher adds a Rams field goal

Rams drive to another score: 9 plays for 38 yards, capped by Brett Maher's 51-yard field goal. Rams 23, Colts 0

12:42 left 3Q: Aaron Donald gets a sack of Anthony Richardson

Aaron Donald is creating havoc along the Colts offensive line. Indy's only first down on its opening drive of the second half comes on a Rams penalty.

Halftime: Rams 20, Colts 0

The Colts offense scuffles and the defense gets torched.

Kyren Williams scores 3-yard rushing touchdowns on the first two Rams drives, both of which are aided by Colts defensive personal fouls.

Matthew Stafford is 14-of-18 for 185 yards, with rookie Puka Nacau getting 5 catches for 98 yards. Williams has 17 carries for 76 yards.

Brett Maher has 2 field goals, but misses from 46 yards as the first half ends.

Anthony Richardson is 4-of-6 for 47 yards, highlighted by his longest throw of the year on a 30-yard completion to Josh Downs. Richardson has been sacked once. Richardson also has 8 carries for 56 yards, with a lost fumble.

Matt Gay misses a 47-yard field goal try late in the first half.

1:45 left 2Q: Colts come up empty

Matt Gay misses right from 47 yards. Anthony Richardson goes 2-of-3 for 35 yards on the drive before it sputters with an incompletion on 3rd down and a false start penalty on 4th down.

5:48 left 2Q: Rams add to lead over Colts

Dayo Odeyingbo sacks Matthew Stafford to squelch the drive. Brett Maher hits a 54-yard field goal. Rams 20, Colts 0

Matthew Stafford (12-of-16, 179 yards) has enough time to pick apart the Colts. He hits Puka Nacua (4 catches, 91 yards) for 32 yards.

Colts force a Kyren Williams fumble, but the Rams recover.

12:52 left 2Q: Rams add a field goal

Brett Maher hits from 40 yards. Rams 17, Colts 0

End 1Q: Rams 14, Colts 0

Matthew Stafford hits Tyler Higbee for 33 yards to the Colts 15. L.A. has 184 total yards (8.4 per play); the Colts have 49.

2:32 left 1Q: Anthony Richardson loses a fumble

The Rams strip him on a 9-yard gain and get possession at their 40. Richardson started drive with a 22-yard run.

3:40 left 1Q: Kyren Williams scores again

Kyren Williams, again from 3 yards, capping a 94-yard drive. L.A. has 100 passing yards and 39 rushing. Rams 14, Colts 0

The Rams convert a 4th-down play as Matthew Stafford hits Van Jefferson to the Colts 15.

Kenny Moore II gets a personal foul after another long Puka Nacua catch, putting the Rams into Colts territory. Nacua has 3 catches for 59 yards.

8:18 left 1Q: Colts punt on first possession

Anthony Richardson is 1-of-2 passing for 7 yards, with 2 carries for 11 yards. He is sacked once.

11:35 left 1Q: Rams score on their opening drive

Kyren Williams runs it in from 3 yards, his 5th touchdown this season. Rams 7, Colts 0

E.J. Speed knocks Matthew Stafford off his feet out of bounds on a third-down play, giving the Rams a first down at the Colts 29.

Here's the first play from scrimmage, as Matthew Stafford hits rook Puka Nacua. for 26 yards.

Colts inactives

CB Darrell Baker Jr., QB Sam Ehlinger, C Ryan Kelly, DE Isaiah Land, TE Will Mallory, LB Cam McGrone, T Bernhard Raimann.

DE DeForest Buckner (groin/back) and RT Braden Smith (right wrist), who battled injuries all week, are available.

Colts coach Shane Steichen said Sunday morning that rookie Blake Freeland would start at left tackle in Raimann's place. Wesley French has played in Kelly's place.

Rams inactives

LT Alaric Jackson, who left the Rams' Week 3 game with a hamstring injury, is out. Other inactives include WR Zach Evans, OL Zach Thomas and DE Earnest Brown.

Colts have 'Step Brothers'

Did rookie quarterback Anthony Richardson and wide receiver Michael Pittman Jr. just become best friends?

Colts news from IndyStar

Colts Insider: 9 things to watch in Richardson's return against Rams

Loose change: Kwity Paye fined for uncalled facemask penalty vs. Ravens

How to watch, odds, more: What channel is Colts vs. Rams on today?

Controlled environment: Colts decide whether Lucas Oil Stadium roof will be open

This article originally appeared on Indianapolis Star: Colts vs. Rams updates, score, video highlights in NFL Week 4